303results about How to "Reduce electricity load" patented technology

An apparatus and method for controlling a hybrid motor, The hybrid motor, uses a permanent magnet instead of a field coil for a rotor, winds a coil round a stator in a multi-phase independent parallel manner, fixes a rectifying type encoder to the rotor and connects a sensor to a driving circuit. The apparatus comprises: an encoder attached to a rotor in cooperation with a pole sensor a speed input unit for generating a speed instruction signal a power switching circuit to generate motor driving signals; a drive module receiving the speed instruction signal and the sensor signal and outputting the speed instruction signal synchronized with the sensor signal as a driving motor signal; a power supply for applying a DC voltage to the power switching circuit; A logic power supply for converting the DC voltage into a logic voltage, and applying logic voltage to the drive module. The motor has n phases, n power switching circuits and n drive modules.

A system for load control in an electrical power system is described, wherein one or more load-control devices are provided to control power delivered to electrical equipment. A remote power authority, such as a power company, government agency, or power transmission company sends one or more commands to the load-control devices to adjust loading on the electrical power system. In one embodiment, the power authority sends shutdown commands. In one embodiment, the power authority sends commands to tell the electric power device to operate in a relatively low-power mode. In one embodiment, the commands are time-limited, thereby allowing the electric power device system to resume normal operation after a specified period of time. In one embodiment, the commands include query commands to cause the control device to report operating characteristics (e.g., efficiency, time of operation, etc.) back to the power authority.

There is provided a power transmission control device included in a power transmission device in a contactless power transmission system that transmits power from the power transmission device to a power receiving device by electromagnetically coupling a primary coil to a secondary coil to supply the power to a load of the power receiving device. The power transmission control device includes a controller controlling the power transmission control device, a host interface communicating with a power transmission-side host, and a register section accessible from the power transmission-side host via the host interface. The controller shifts into a communication mode that executes communication between the power transmission-side host and a power receiving-side host, when the power transmission-side host writes, via the host interface, a communication request command that requests the communication between the hosts in the register section. Then, the controller transmits the communication request command to the power receiving device.

Novel twisted blades with an air foil for use with air conditioner condensers and heat pumps that provide improved airflow efficiency to minimize operating power requirements having an overall diameter across the blades being approximately 19 inches, and approximately 27.6 inches. The blades (AC-A) can run at approximately 840 rpm to produce approximately 2200 cfm of air flow using approximately 110 Watts of power from an 8-pole motor. Using an OEM 6-pole ⅛ hp motor produced approximately 2800 cfm with approximately 144 Watts of power while running the blades at approximately 1100 rpm. Power savings were 25% (50 W) over the conventional configuration. A second version of the fan (AC-B) with some refinements to the flow geometry produced a similar air flow while using only 131 W of power at 1100 rpm. Power savings were 32% (62 W) over the conventional configuration. Embodiments can include two, three, four and five blades equally spaced apart from one another about hubs. Additionally, a novel noise reduction configuration can include asymmetrically mounted blades such as five blades asymmetrically mounted about the hub. Short, conical diffusers were shown to further improve air moving performance by up to 18% at no increase in power. Embodiments coupled with electronically commutated motors (ECMs) showed additional reductions to condenser fan power of approximately 20%.

A dynamic power control system for controlling power utilization on a local level in a power sub-network of a power grid is presented. The power sub-network is configured with switchable power nodes, each having an associated priority level and each having a switch element that operates to switch coupling and uncoupling of first and second subsets of power lines in the sub-network. A sub-network controller monitors utility information that is associated with one of a plurality of system priority levels each of which is associated with one of a plurality of switch state configurations of the respective switch states of the switchable power nodes in the power sub-network, and effects the switch states of the switchable power nodes to comply with the switch state configuration associated with the received utility information.

Embodiments relate to a method and system for power demand shaping (PDS) so as to manage power generation and use. Specific embodiments relate to data center power demand shaping to achieve high-performance low-overhead data center operation. Specific embodiments can incorporate standard (utility power) energy sources, renewable energy sources, or a combination of standard (utility power) energy sources and renewable energy sources. Embodiments of the subject PDS techniques can incorporate trimming the data center load power so as to allow DG systems to follow the power demand efficiently and / or incorporate two adaptive load tuning schemes that can boost data center performance and enable near-oracle operation during power demand trimming process. To implement a cross-layer power optimization scheme, embodiments of the subject invention relate to a power management module that can reside between front-end distributed generation and back-end computing facilities to provide a coordinated tuning between the supply and load.

The cabin cooling system includes a cooling duct positioned proximate and above upper edges of one or more windows of a vehicle to exhaust hot air as the air is heated by inner surfaces of the windows and forms thin boundary layers of heated air adjacent the heated windows. The cabin cooling system includes at least one fan to draw the hot air into the cooling duct at a flow rate that captures the hot air in the boundary layer without capturing a significant portion of the cooler cabin interior air and to discharge the hot air at a point outside the vehicle cabin, such as the vehicle trunk. In a preferred embodiment, the cooling duct has a cross-sectional area that gradually increases from a distal point to a proximal point to the fan inlet to develop a substantially uniform pressure drop along the length of the cooling duct. Correspondingly, this cross-sectional configuration develops a uniform suction pressure and uniform flow rate at the upper edge of the window to capture the hot air in the boundary layer adjacent each window.

An electrical network for an aircraft. The aircraft includes at least one variable pitch propulsor. The electrical network includes a wound field synchronous AC electrical generator having a wound rotor driven by an internal combustion engine. The network further includes a voltage regulator configured to regulate output voltage of the electrical generator by regulating rotor winding magnetic field strength, and a synchronous AC drive motor coupled to a respective variable pitch propulsor and provided with power from the output of the electrical generator.

The present disclosure provides a method for improving battery life of electronic devices such as Bluetooth headsets, smart-watches among others running on small batteries, for example coin batteries. The method may include wireless power transmission through suitable techniques such as pocket-forming, while including receivers and capacitors in the aforementioned devices. Wirelessly charged capacitors may provide sufficient power on which devices may run, and thus, battery life of such electronic devices may be enhanced.

Embodiments relate to a method and system for power demand shaping (PDS) so as to manage power generation and use. Specific embodiments relate to data center power demand shaping to achieve high-performance low-overhead data center operation. Specific embodiments can incorporate standard (utility power) energy sources, renewable energy sources, or a combination of standard (utility power) energy sources and renewable energy sources. Embodiments of the subject PDS techniques can incorporate trimming the data center load power so as to allow DG systems to follow the power demand efficiently and / or incorporate two adaptive load tuning schemes that can boost data center performance and enable near-oracle operation during power demand trimming process. To implement a cross-layer power optimization scheme, embodiments of the subject invention relate to a power management module that can reside between front-end distributed generation and back-end computing facilities to provide a coordinated tuning between the supply and load.

A dynamic power control system for controlling power utilization on a local level in a power sub-network of a power grid is presented. The power sub-network is configured with switchable power nodes, each having a switch element that operates to switch coupling and uncoupling of first and second subsets of power lines in the sub-network. A sub-network controller monitors utility information that is associated with one of a plurality of switch state configurations of the respective switch states of the switchable power nodes in the power sub-network, and effects the switch states of the switchable power nodes to comply with the switch state configuration associated with the received utility information.

The present invention is directed to additives for coal-fired furnaces, particularly furnaces using a layer of slag to capture coal particles for combustion. The additive(s) include iron, mineralizer(s), handling aid(s), flow aid(s), and / or abrasive material(s). The iron and mineralizers can lower the melting temperature of ash in low-iron, high alkali coals, leading to improved furnace performance.

An engine start control apparatus includes a crank angle sensor, and a stroke discrimination device that discriminates which of engine cylinders is in intake or compression strokes in an engine stopped state. A crankshaft is temporarily reverse-rotated in a reverse-rotational direction by way of crankshaft reverse-rotation control until an intake valve becomes shifted from a valve closed state to a valve open state, when cranking the engine for startup under a specific condition where a crankangle of an engine cylinder whose piston stroke is in the intake stroke or in the compression stroke, is within a specified crankangle range from 40 degrees of crankangle before a piston B.D.C. position to 40 degrees of crankangle after the piston B.D.C. position. The crankshaft is rotated in a normal-rotational direction by way of crankshaft normal-rotation control after the intake valve has been shifted to the valve open state.

A vehicle tracking unit may include a housing, a vehicle position determining device, a wireless communications device, and a controller carried by the housing. The controller may cooperate with the wireless communications device and the vehicle position determining device to determine and send vehicle position information to a monitoring station. Additionally, an upgrade connector may be carried by the housing and coupled to the controller. Also, an upgrade device may be removably coupled to the upgrade connector for causing the controller to perform at least one vehicle function.

Disclosed in the invention is a PLC-based intelligent household gateway apparatus. The apparatus comprises: a master control unit, which is used for central controlling; an interaction unit, which is used for carrying out information interaction with a user; a metering unit, which is used for electric quantity metering; a wireless route communication unit, which is used for broadband access, indoor wireless network signal coverage, and communication with other communication terminals; a PLC communication unit, which is used for indoor power line carrier communication and is respectively connected with the master control unit, and a 220-V power line; a power supply limiting unit, which is used for controlling a household electricity load and is respectively connected with the master control unit and a household circuit input circuit; and a power supply unit, which is used for providing power for all the units. And the interaction unit, the metering unit and the wireless route communication unit are respectively connected with the master control unit. According to the invention, the intelligent household gateway apparatus that has high integration is integrated with the function as a household intelligent ammeter and the functions of intelligent power management, intelligent household, and home network access and the like, thereby building comfortable, intelligent, high-efficiency, and green household living environment.

A system for load control in an electrical power system is described, wherein one or more load-monitoring devices are provided to control power service delivered to a home or building. A remote power authority, such as a power company, government agency, or power transmission company sends one or more commands to the load-monitoring device to adjust loading on the electrical power system. In one embodiment, the power authority sends shutdown commands. In one embodiment, the power authority sends commands to tell the load-monitoring device to provide reduced power service. In one embodiment, the commands are time-limited, thereby allowing the electric power device system to resume normal operation after a specified period of time. In one embodiment, the commands include query commands to cause the control device to report operating characteristics (e.g., efficiency, time of operation, etc.) back to the power authority.

A system for load control in an electrical power system is described, wherein one or more load-limiting devices such as outlets and / or lighting sockets are provided to a home or building. The load-limiting devices conserve power and increase safety by not allowing a user to attach a device that draws excess power. Unlike circuit breakers and fuses, the load-limiting devices automatically resume normal operation when the excess load is removed. In one embodiment, the power authority sends commands to tell the load-monitoring device to provide reduced power service. In one embodiment, the commands are time-limited, thereby allowing the electric power device system to resume normal operation after a specified period of time. In one embodiment, the commands include query commands to cause the control device to report operating characteristics (e.g., efficiency, time of operation, etc.) back to the power authority.

An vehicle rooftop cooling system includes a radiator located outside of the engine compartment of a vehicle, the radiator having a liquid coolant inside the radiator; a fan coupled to the radiator and configured to extract hot air from the radiator; a first sensor proximate to the radiator configured to measure coolant temperature of the coolant in the radiator; and a controller communicably coupled to the first sensor, the controller configured to receive inputs from the first sensor, to make determinations based on the received inputs, and to communicate control signals across a controller area network (CAN) in response to said determinations, wherein the controller is further configured to communicate a first control signal to cool the liquid coolant upon determining that the first sensor has measured temperature above a threshold.

A shade assembly including reflective shade panels suspended above a roof or along an exterior wall of a building. The assembly also includes a shade box, such as one including an assembly of upright support posts and attached cables to which dark or reflective water-absorbent shade panels are attached. The shade box covers a rooftop fixture. The shade box can also include a water distribution system which dispenses water substantially onto the dark shade panels when they are included in the shade box. The shade assembly may also be used in a method for cooling the exterior surface of a building. The shade assembly may be used in a method of obtaining government economic incentives for energy efficiency such as emission reduction credits. A shade assembly including reflective shade panels suspended above a structure on or near the ground, such as a parking lot.

The invention relates to a multi-target synergic planning method considering a charging station and a distributed power supply for a power distribution network. The method comprises the steps of considering uncertainty of the distributed power supply, analyzing a wind light power generation output rule, and building a multi-scene distributed power supply and load model according to season and timesequence characteristic; building an electric vehicle road traffic network model, considering traffic flow distribution and traffic network layout, calculating traffic economic benefit according to traffic flow captured by an electric vehicle charging station and average waiting time of a user, and allowing the power distribution network to be coupled to the traffic network; and comprehensively considering the distributed power supply and electric vehicle charging site selection and sizing, and building a multi-target synergic planning model by planning lowest total cost and optimal network node voltage mass as an upper-layer target and minimum distributed power supply removal quantity expected value as a lower-layer target. By the method, the running economy and the electric energy quality of a power grid are improved, moreover, the traffic congestion caused by construction of the charging station is prevented, and the stability of the power system is improved.

A chip stack may include a first semiconductor chip and a second semiconductor chip stacked on the first semiconductor chip. Each semiconductor chip may have an active surface, a back surface opposite to the active surface, and a plurality of connection pads arranged in the center of the active surface. At least one through electrode may be formed in the first semiconductor chip and may be connected to at least one of the plurality of connection pads, and a portion of the at least one through electrode may be exposed by the back surface of the first semiconductor chip. The active surface of the first semiconductor chip may be arranged to face the active surface of the second semiconductor chip. The plurality of connection pads of the first semiconductor chip may be electrically connected to the plurality of connection pads of the second semiconductor chip.

A method is provided for controlling a wind farm connected to a grid. The wind farm includes a wind farm emergency generator and at least a first wind turbine. The first wind turbine includes a wind turbine transformer, a wind turbine converter and auxiliary equipment. The method includes detecting a lost grid connection, providing active power to the auxiliary equipment via the wind farm emergency generator, providing reactive power via the wind turbine converter.

The invention discloses a villiaumite cooling ball bed high-temperature stack core flowing heat exchange simulating experiment system. The system can perform two experiments of Dowtherm A heat-conducting oil flowing and heat exchange and can simulate the flowing heat exchange characteristic of high-temperature villiaumite under the working condition of low temperature. The experiment system can perform flowing experiment and heat transfer experiment on high Prandtl number heat-conducting oil in a bed ball channel and can realize flowing and heat exchange simulation of the villiaumite cooling ball bed high-temperature stack core FLiBe; and the experiment system has the advantages of high safety, high experiment data precision, low operating cost and the like.

A horizontal rooftop engine cooling system includes one or more radiator units horizontally mountable to the rooftop of a bus and including a radiator interconnected to one or more passages of an engine of the bus to allow coolant to flow between the engine and the rooftop cooling system to cool the engine. The cooling system can incorporate a fan mounting shroud, a ram-air aerodynamic shroud, and / or an ornamental aesthetic appearance shroud.

The invention provides a preheating catalytic-oxidation device with burner starting for coal mine ventilation air methane, and belongs to the technical field of ultralow-concentration methane oxidation; the device comprises a ventilation air methane gas supply system, a preheater and a reaction chamber disposed in a housing, a burner heating starting system, a gas intake system, a heat extractionsystem, and a measuring and controlling system, wherein a uniform-temperature uniform-flow bed layer and a catalytic-oxidation bed layer are orderly disposed in the reaction chamber along the gas flow direction, and hot gas generated by the burner heating starting system is delivered into the gas intake system. After the starting of heating in the reaction chamber, the ventilation air methane is fed into the preheater to be heated to a high temperature, and is oxidized into carbon dioxide and water in the catalytic-oxidation bed layer; a part of the oxidized hot gas is allowed to enter the heat extraction system for heat extraction and utilization, and the other part is allowed to enter the preheater for transferring heat to fresh ventilation air methane entering the preheater and for cooling, and then is discharged into atmosphere through a exhaust gas outlet. The invention has the advantages of compact structure, low power dissipation, simple operation, high reliability, flexible fuels, and the like.

The sub panel 100, having a plurality of gate bus lines 14, source bus lines 16, TFTs 25 and pixel electrodes, is provided with a source driver 15. The main panel 200 has a plurality of gate bus lines 24, source bus lines 16, TFTs 25 and pixel electrodes, each of the source bus lines 16 being connected to the corresponding source bus lines 16 of the first liquid crystal panel 10 through a switching TFT 17. The main panel 200, sharing the source driver 15 with the first liquid crystal panel 10, is less frequently used for display than the first liquid crystal panel 10, and is disconnected by the switching TFT 17 when only the sub panel 100 is used. This makes it possible to device a twin-panel display device low in electric power consumption.

The invention discloses a packing machine, which comprises a stander, wherein a bottle conveying device and a container conveying device are arranged below the stander; a translation frame capable of sliding between the bottle conveying device and the container conveying device is arranged on the upper part of the stander; a lifting frame capable of sliding up and down along the translation frame is arranged on the translation frame; a bottle catching component is arranged at the lower end of the lifting frame; a first servo motor and a second servo motor are arranged at a position, corresponding to the translation frame, on the stander; a first guide pinch roller, a second guide pinch roller, a third guide pinch roller and a fourth guide pinch roller are arranged on the translation frame; and after a transmission device moves around the first guide pinch roller, a synchronizing wheel of the first servo motor, a second guide pinch roller, a guide wheel arranged at the upper end of the lifting frame, the third guide pinch roller, a synchronizing wheel of the second servo motor and the fourth guide pinch roller, two ends of the transmission device are fixed on the lower part of the lifting frame. The packing machine has a simple structure; a moving trace of the packing machine can be finished according to any assumed realizable curve trace; furthermore, the packing machine is stable in performance, high in working efficiency and low in electrical load.

The invention discloses a hydro-electric combination drive friction type super capacitor mine hoist and a control method thereof, and belongs to the field of mine hoists. The hydro-electric combination drive friction type super capacitor mine hoist and the control method thereof are characterized in that a first cage conductor and a second cage conductor are connected with a hoisting rope respectively, and the hoisting rope is connected with a mine hoist winding drum; the mine hoist winding drum is connected with a hoist motor; the hoist motor is connected with a high-voltage inverter, a first hydraulic pump / motor, and a direct current bus of the high-voltage inverter; the first hydraulic pump / motor is connected with a hydraulic energy-storing loop; a direct current bus side voltage detecting circuit is connected with a bidirectional DC / DC converter; a super capacitor side voltage detecting circuit is connected with the bidirectional DC / DC converter; output of the direct current bus side voltage detecting circuit and the output of the super capacitor side voltage detecting circuit are connected with a controller; a revolution speed transducer is connected with the controller, and the controller is connected with a control site of the hydraulic energy-storing loop, the control site of the high-voltage inverter, and the control site of the bidirectional DC / DC converter. According to the hydro-electric combination drive friction type super capacitor mine hoist and the control method thereof, use ratio of electric energy is increased, and the service life of circuit components is prolonged.